We looked long and hard at RKS Jayco trailers. In the end, we opted for the RLS in part because it has two doors and offers adequate kitchen counter space. Like you, we have the aluminum siding, Elite pkg, and aluminum wheels.
We wondered about the air flow difference with flush windows, but until your post hadn't heard anyone say they noticed a difference. We also like the windows at the sides (front & back?) of the slide on the JayFlight for their additional light and air flow. The Whitehawks didn't have windows there.
We are very pleased. We towed it for many miles last season and plan to 'live' in it this season as campground hosts.
Sherm & Terry w/rescues Steve (std Poodle) & Eydie (min Schnauzer)
2015 Jay Flight 27RLS (Camped: 102 nights 2015, 90 nights 2016)
2006 Ford F350 6.0 PSD, Lariat, 4WD, CC, LB, SRW, auto., Camper pkg.